Electrical system for internal combustion engines



June 11, 1935. Y w z 2,004,642

ELECTRICAL SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed April 15, 1932 IBUTOR mz zzvrole Daniel L. Wertz ATTORNEY Patented June 11, 1935 Y UNITED STATES PATENT OFFICE ELECTRICAL SYSTEM FOR INTERNAL COM- BUSTION ENGINES Daniel L. Wertz, Elmira, N. Y., assignor to Eclipse Machine Company, Elmira, N. Y., a corporation of New York Application April 13, 1932, Serial No. 605,045

3 Claims. (Cl. 290-37) The present invention relates to an electrical conventional type indicated generally by nusystem for internal combustion engines and more meral l5. particularly to theft protective devices for use A control circuit for the magnetic starting in conjunction with automatic starting and igswitch! is shown comprising a solenoid 16 con- 5 nition control systems. nected at one end to the lead H and at its other 5 In automatic control systems for automotive end by a lead I! to a stationary contact 18. A engines, special provisions are sometimes necesmovable contact l9 is mounted on a spring strip sary to maintain the protection against theft 2| in position normally to engage the fixed con- Which is usually'incorporated in connection with tact l8, the spring strip 2| being grounded at 22 10 the ignition system. The present invention emto complete the control circuit. Energization of 10 bodies an automatic control system in which a solenoid I6 by closure of the control circuit is single manually operated switch is arranged to arranged to operate a magnetic plunger 20 to control the operation of both the starting and close said starting switch 4.

ignition systems, and incorporating theft pre- Means are provided for cooperating with said venting provisions analogous to those provided in contacts l8, l9 to form a relay for opening said :5 connection with conventional ignition systems. contacts when the engine starts and for closing It is an object of the present invention to prosaid contacts if the engine stalls. Said relay invide a novel automatic starting and ignition concludes a solenoid having a battery Winding 23 trol system embodying provisions for preventing connected at one end by a lead 24 to the starting unauthorized operation thereof. motor lead I, and grounded at the other end as in- 20 It is another object to provide such a, device dicated at 25. Said solenoid is also provided with in which the automatic starting mechanism is a generator winding 26 Connected a One end y. located between the ignition coil and the timer e d 27 o a engine d v ator G and and serves to control the ignition circuit. grounded at its other end at A p 23 25 A further object is to provide such a device s arranged to b a ed by the windings 23 and 25 in which a lock switch is employed particularly 26 to win a lever 9 and cause a roller 3| on to control the automatic starting mechanism, and the end thereof to gage a wei member 32 the connections from the switch to the automatic 0!! the end of the Spring Strip 2| d b d the starting mechanism and to the ignition timing Same backward to p Contacts 0 mechanism are protected from unauthorized Movable contact l3 of the ignition circuit is manipulation. mounted on a flexible strip 33 of suitable non- Further bjects and advantages 11 be magnetic material which is connected to the parent to those skilled in this art from the folmagnetic Dhmgers and 23 as indicated a 34 lowing description taken i nn ti ith th and 35 respectively so that actuation of either of 35 accompanying drawing in which t figur is a said plungers as above described will move con- 35 semi-diagrammatic showing of a preferred emtact into engagement with Contact and bgdiment of the invention thereby close the ignition circuit. One end of Referring to the drawing, an electrical startthe Strip 33 may if Preferred be fixedly supporting System f an internal combustion engine ed as indicated at 36. A suitable resistance 31 40 not Shown, is illustrated comprising a battery may be introduced in the ignition circuit beyond 40 grounded at z and Connected by a lead 3 to a the connection to the solenoid 16, as for instance magnetic Starting switch indicated generally by in lead M, in order to insure that solenoid I6 is numeral 4 Switch 4 is connected by a lead 5 to properly energized even though the ignition timer a single turn coil 6 which is connected by a lead Should Stop wlth Its contacts closed- 1 to a Starting motor SM, Said motor being In order to prevent unauthorized operation of 45 grounded at 3 to complete the Starting circuit. the device, the manual switch I ll 15 provided with An ignition system for said engine is illustrated h Sultable d rm of locking mechacomprising an ignition coil 9 connected through m and the lead H 15 provlded Wlth theft ammeter A to the battery lead 3, and through sisting sheath 3B; the automatic controlling dea manual switch and lead to an automati Vice including the magnetic Starting Switch and 0 cally operated ignition switch comprising a fixed Control relay is housed in a Casing 9, a d the contact I 2 and a movable contact Hi. The movlead t0 the timing mechanism 15 s also inable contact l3 which is normally out of engageclosed in a theft resisting sheath 4|. ment with the contact l2 as illustrated is con- In the Operation of the device, Closure o t negted by a l d 14 t timing mechanism of manual lock switch l0 causes the completion of 55 the control circuit from battery I through coil 9 and solenoid. 16 to the ground at 22 whereby the plunger 20 is actuated to close the starting switch. Closure of the starting switch causes contact l3 to move into engagement with contact l2 and close the ignition circuit through coil 9, switch in, and contacts [2, l3 to the timing mechanism 15. The actuation of the starting motor SM by the closure of the starting switch 4 causes the motor to be cranked in the usual manner and closure of the ignition circuit causes the motor tobecoine self-operative.

When the engine starts, the winding 23 of thef control relay overcomes the holding effect of the single turn coil 6 in the starting circuit and actuates plunger 28 to swing lever 29 and open contacts l8, l9, thus breaking the control circuit and opening the starting switch 4. The generator.

erator coil 26 becomes deenergized, releasing the plunger 25 whereby contacts [8, H! are allowed to close and contacts l2, l3 arev allowed to open. The reenergization of the solenoid l6 due to the closure ofthe control circuit causes the starting switch 4 to be reclosed, whereby the ignition con tacts l2, l3 are also closed and restarting takes place as above described.

It will be seen that there is here provided adevice whereby a single manual lock switch is enabled to control primarily. the starting operation,

and secondarily the ignition circuit in conjunction with a switch which is automatically closed by the operation of the starting control mechanism. Since the connections from the lock' switch Hi to the control casing 39 and from said casing to the timing mechanism l are provided with protective sheaths, it is obvious that this arrangement affords the usual protection from unauthorized operation of the device.

Although but one embodiment of the inven-v tion has been shown and described in detail, it will be understood that other embodiments are possible and that various changes may be made in the details and arrangements, of the parts without departing from the spirit of the invention as defined in the claims appended hereto.

What is claimed is:

1. In an automatic control for starting and ignition systems for internal combustion engines, a starting circuit including a starting switch, an ignition circuit including an ignition switch and timing mechansm, an electromagnet for controlling said starting switch, a magnetic relay for opening the starting switch by deenergizing said electromagnet when the engine starts, means whereby said electromagnet causes closure of the ignition switch during the starting operation, and

- means whereby said relay magnet maintains said ignition switch closed as long as the engine is in operation irrespective of the opening of the starting switch by the deenergization of said electromagnet.

2; In an automatic control for starting and ignition systems for internal combustion engines, a starting circuit including a motor and a starting switch, an ignition circuit including an igni-V tion switcliand timing mechanism, anelectromagnet for controlling said starting switch,a manual lock switch for closing and opening thecircuit of said electromagnet, a magnetic relay for opening the starting circuit by deenergizing said electromagnet when the engine starts, means wherebysaid electromagnet causes closure of the ignition switch when thestarting switch is closed, means whereby said relay magnet maintains said ignition switch closed irrespective of theopening of the starting circuit, and theft-resisting sheathing'enclosing and connecting the magnetically operated switches, the manual lock switch and the timing mechanism.

3. In combination with an internal combustion engine, an ignition system. therefor including in series an ignition coil, a manual lock switch and a timer mechanism, a starting system for the engine including an automatic starter control located between the ignition coil and timer mechanism, means whereby the automatic starter control closes the ignition circuit during the starting operationandholds it closed during selfoperation of the engine, and theft resisting sheathing connecting the manual switch to the automatic starter control and the automaticv 

